Ore-crusher



.l. HERMAN ORE CRUSHER.

APPLICATION FILED MAY27,1920- Patented Nov. 1, 1921.

2 SHEETS-SHEET INVENTOF? J'Ohn Her/17a J. HERMAN.

ORE CRUSHER.

APPLICATION FILED MAY 27, 1920.

Patented Nov. 1, 1921.

2 SHEETS-SHEET 2.

JOHN HERMAN, OF LOS ANGELES, CALIFORNIA.

ORECRUSHEBZ Specification of Letters Patent.

Patented Nov. 1, 1921.

Application filed May 27, 1920. Serial No. 384,689..

T 0 aZZw ham it may concern:

Be it known that I, JOHN HERMAN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have. invented new and useful Improvements in Ore-Crushers, of which the following is a specification.

This invention is an ore crusher having jaws movable'relative to one another, and it is the object of the inventionto provide a simplified and durable construction of very few parts. r

The invention will be readily understood from the. following description of the accompanying drawings, in which Figure 1 is a side elevation of the crusher, partly broken away.

Fig. 2 is a transverse 22 of Fig. 1. V

Fig. .3 is a view, similar to Fig. 1, of a modified form of the invention.

Fig. 4 is a longitudinal section on the line 4-4 of Fig. 3. j

The improved crusher comprises jaws 1 and 2 arranged in inclined upright position section on the line with the jaw plates 1 and 2 converging downwardly so as to progressively crush any material passing downwardly between the jaws. The jaws are arranged for movement toward andaway from one another by means of an eccentric driving connection.

As an instance of this arrangement the jaw 2 is provided with bearings 3 and 4 at the respective ends thereof, these hearings being arranged in the surface of the jaw which is opposite the jaw plate 2. The bearing 3 maybe formed integral with the jaw while thebearing 4 is, preferably, a split bearing having a bearing cap 5. A shaft 6 extends through the bearing 4 and is provided with an eccentric portion 7 intermediate of the ends of said shaft which is arranged to engage bearing 4 in the jaw 2.

A shaft 8 extends through thebearingB at the opposite end of the jaw 2.

Bearings 9 and 10 are provided at the respective ends of jaw l in the surface of said jaw which is opposite the jaw plate 1, these bearings'being, preferably, formed integral with the jaw. A shaft 11 extends through the bearing 9 at the upper end of jaw 1, and a shaft 12 extends through the bearing .10 at the opposite lower end of the jaw.

The shafts upon which the jaws 1 and 2 are mounted project laterally beyond the jaws, and these end projections of shaft 6 are provided with eccentrics which are diametrically oppositely arranged relative to eccentrlc portion 7. Bearing collars 14 are received around the respective end projections of the shafts forthe jaws, these bea-rin collars upon end projections of shaft 6 sur rounding the eccentrics 13. A loop 19 ex- 7 for shaft 6 which may include a pulley 17 fixed upon said shaft beyond one of the bearings 15.

Cheek plates 18 are, preferably, secured to opposite sides of the pair of jaws 1 and 2, these cheek plates being shown as bolted at .20 to the jaw 1 and as extending beyond jaw 2 with said extensions bolted together as shown at 21. a

The shaft 6 being rotatable relative to the frame of the machine and the shaft 8 being free for movement relative thereto, when the shaft 6 is rotated the engagement of eccentric 7 with the bearing 4 of the jaw 2 will causemovement of said jaw relative to the frame of the machinein both a reciprocatin and swinging path of travel toward an away from jaw 1. The shaft 12 being rotatable relative to the frame of the machine and the shaft 11 being free for movement relative thereto will cause the loops 19, from shaft 6 to shaft 11, to impart a swinging movement to the jaw l upon the shaft 12 as a pivot, this swinging movement of the jaw carrying the latter toward and away from jaw 2. During this relative movement between the jaws 1 and 2 the loops 19 connecting shafts 12 and 8 will limit the movement of shaft 8 relative to the fixed shaft 12 for maintaining the jaws in proper relation relative to one another.

In the modification of the invention illustrated in Figs. 3 and 4, a construction similar to that previously described is employed with the exception of the mounting for shaft 12. In this exemplification of the invention the shaft 12 is not journaled in bearingsbutv the loop 19 connecting shafts 8 and 12 is journaled for oscillating movement;

As an instance of this arrangement a shaft.

willbe seen that rotation of shaft 6 will actuate jaw 52, as previously described, and

' another, the driving means for the crusher the movement of said aw will rock theloop 19 which is journaled upon shaft 23 for causing oscillating movement of jaw-1, said oscillating movement of jaw -1 being also controlled by the loop 19 connecting shafts 6' and 11, It will be understood that positioning shaft 23 in various ones of the bearings 21 will vary the movement of jaw 1 relativeto jaw 2.

. Thus it will be seen that I provide a' crusher of very few parts andin which both aws of the crusher are movedrelative to one actuating one of thejaws, which is provided with a drivingconnectionto theother jaw.

The following advantages of my' ore the arrangement as thus described it' crusher should be noted: the adjustability of the angle of the jaws and of the oscillating movement; the'lightening of weight by the elimination of the usual frame; accessibility of every part; ease of replacement of any broken parts; ease of sectionalization for transportation; possibility of regulating the vertical: component of the crushing stroke to force the feed; and balancing of the crushingstrains so that the crusher works smoothly instead of rockingthe foundation. r I I Various changes maybe made without departing from the spirit of the invention as" claimed.

That is claimedis': j A crusher comprising jaws movable relative to one another and arranged respectively for oscillatory movementhandvfor combined oscillatory and reciprocatory movement, a driving connection at one end of said jaws, a connecting loop 'at the opposite end of saidv jaws, and means' for pivot y JOHN HE MA ally mounting 'said' connecting loop inter- 

